FORAMINIFERA OF THE ATLANTIC OCEAN 

 Globorotalia menardii, var. fimbriata — Material examined 



95 



GLOBOROTALIA TUMIDA (H. B. Brady) 



Plate 17, figures 3 a-c 

 Pulvinulina menardii d'Orbigny, var. tuniida H. B. Brady, Geol. Mag., vol. 

 4, 1877, p. 294; Quart. Journ. Micr. Sci., vol. 19, 1879, p. 80.— Bagg, Proc. 

 U. S. Nat. Mus., vol. 34, 1908, p. 163. 

 Pulvinuliyia tumida H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 692, pi. 103, figs. 4-6; Trans. Zool. Soc, vol. 12, 1888, p. 229.— 

 Egger, Abhaudl. kon. bay. Akad. Wiss. Miincheu, CI. II, vol. 18, 1893, 

 p. 414, pi. 17, figs. 4-6, 35-37, 44.— Woodward, The Observer, vol. 4, 

 1893, p. 178. — Chapman, Proc. Zool. Soc. London, 1895, p. 42. — Flint, 

 Rept. U. S. Nat. Mus., 1897 (1899), p. 329, pi. 73, fig. 5.— Chapman, 

 Journ. Linn. Soc. Zool., vol. 28, 1902, p. 406. — Millett, Journ. Roy. 

 Micr. Soc, 1904, p. 499. — Cxishman, Proc. Boston Soc. Nat. Hist., vol. 

 34, 1908, p. 31. — Chapman, Journ. Linn. Soc, Zoology, vol. 30, 1910, 

 p. 422. — Heron-Allen and Earland, Journ. Roy. Micr. Soc, 1911, 

 p. 341. — Schubert, Abhaudl. k. k. geol. Reichs., vol. 20, pt. 4, 1911, 

 p. Ill, pi. 1, fig. 1 T; pi. 5, fig. 1 T; pi. 5, fig. 4 P.— Heron-Allen and 

 Earland, Trans. Zool. Soc. London, vol. 20, 1915, p. 715. — Cushman, 

 Bull. 71, U. S. Nat. Mus., pt. 5, 1915, p. 56, pi. 22, fig. 3.— Sidebottom, 

 Journ. Roy. Micr. Soc, 1918, p. 259.— Cushman, Bull. 100, U. S. Nat. 

 Mus., vol. 4, 1921, p. 337, pi. 66, figs. 3 a-c. — Heron-Allen and Ear- 

 land, British Antarctic Exped., Zoology, vol. 6, 1922, p. 215.— Koch, 

 Ber. Schweiz. Pal. Ges., vol. 18, 1923, p. 357.— Hanzawa, Jap. Journ. 

 Geol. Pal., vol. 4, 1925 (1926), p. 44. — Yabb and Hanzawa, Jap. Journ. 

 Geol. Pal., vol. 4, 1925 (1926), p. 52. 

 Test biconvex, oval, dorsal surface convex especially in the early 

 portion, ventral side less convex, umbilicate; peripheral margin 

 rounded, becoming more acute in the later formed portion with a 

 rounded carina; chambers fairly numerous, about six in the last- 

 formed whorl; sutures curved, depressed on the ventral side; wall of 

 the early portion of the test granular, later chambers becoming 

 progressively smoother; aperture an arched opening near the um- 

 bilical end of the margin of the chamber, often with a sUght valvular 

 projection above. 



Diameter up to 1.25 mm. 



This species is common and often abundant in the Globigerina-ooze 

 deposits of the western Atlantic as elsewhere. 



